22results about How to "Improve sizing effect" patented technology

The invention belongs to the technical field of textile materials, and relates to a high-performance antibacterial flame-retardant environment-friendly textile sizing agent and a preparation method thereof. The textile size composition is prepared from the following raw materials in parts by weight: 50-80 parts of composite modified starch, 5-10 parts of (methyl) acrylic acid (methyl / butyl) ester, 5-7 parts of waterborne polyurethane, 12-20 parts of xanthan gum, 3-9 parts of a composite antibacterial agent, 10-18 parts of a composite flame retardant, 1-3 parts of sodium citrate, 2-3 parts of a smoothing agent and 40-80 parts of deionized water. The concentration of the slurry composition is controlled between 10 g / L and 35 g / L by deionized water, and the pH value is adjusted between 6 and 8. The textile sizing agent does not contain a PVA component, has the characteristics of bacteriostasis, flame retardance, environment friendliness, wear resistance, excellent sizing performance and the like, can replace the traditional PVA sizing agent, and is multifunctional, high-performance, bacteriostatic, flame-retardant and environment-friendly textile sizing agent.

The invention discloses digital heat transfer paper with low rejection rate and a preparation method thereof. The digital heat transfer paper is prepared by the following steps: firstly, preparing a surface coating glue solution, then carrying out pulping, pulping and proportioning on the pulp, and carrying out a plurality of processes of forming on a net, carrying out surface sizing and coating, thereby finally obtaining the digital heat transfer paper. The sizing agent is modified by using the grafting agent to obtain the modified sizing agent, and then the modified sizing agent is applied to the digital heat transfer paper, so that compared with the prior art, the digital heat transfer paper prepared by the invention has the advantages of good glossiness, relatively good hydrophobicity and the like.

The invention discloses an efficient production method of digital heat transfer paper, and belongs to the technical field of papermaking. The method comprises the following steps: mixing modified starch and water, and heating to form a sizing solution; a styrene-acrylic surface sizing agent and rosin size are mixed, and light calcium carbonate and sodium carboxymethyl cellulose are mixed, so that a surface sizing solution and a coating glue solution are prepared respectively; pulping, diluting and pulping the pulp to form mixed pulp with proper beating degree; the method comprises the following steps: adding an internal sizing solution and a PPE wet strength agent into a mixed slurry, screening and purifying the slurry through a slushing pump, a sand remover and a pressurized screen, then forming on a net, simultaneously adding auxiliary agents such as polyethyleneimine, calcium silicate and silica sol, and finally obtaining the digital heat transfer printing paper with excellent tensile strength and folding strength after squeezing dehydration, surface sizing and drying of a paper sheet. Compared with the prior art, the method disclosed by the invention not only improves the production efficiency, but also ensures the printing quality and the mechanical property of the digital heat transfer paper, and meets the requirements of the market on high-performance transfer paper.

The invention relates to corrugating base paper for a fruit box. The corrugating base paper comprises the following raw materials in percentage by weight: 65-75% of OCC pulp, 23-27% of broadleaf wood chemi-mechanical pulp and 5-8% of wood fibers. According to the invention, broadleaf wood chemi-mechanical pulp is added into OCC pulp to increase the fracture length of paper, wood fibers are added to increase the permeation of surface sizing starch, and the starch enhancer is introduced, so that in the starch gelatinization process, the starch enhancer can effectively weave a glucose chain of starch into a net-shaped structure, thereby remarkably improving the strength of the OCC pulp, optimizing the sizing effect of the starch, and improving the quality of the OCC pulp. The process of combining internal sizing and surface sizing is used, the moisture regain resistance of the paper on the end face and the surface is improved, the stiffness, bursting strength and ring crush compression resistance of the paper can be remarkably improved by using the production process, and the moisture regain resistance effect is good.

The invention relates to the technical field of papermaking chemicals, in particular to an AKD emulsion and a preparation method thereof. The AKD emulsion is prepared from, by mass, 18-22 parts of modified alkyl ketene dimer, 1.5-2 parts of dopamine modified silicon dioxide, 2.5-3 parts of emulsifier, 1.8-2.2 parts of dispersing agent, 1.3-1.5 parts of synergist, 1-1.2 parts of stabilizer and 80-85 parts of water, and the emulsifier is prepared by mixing modified cationic starch emulsifier and polymer emulsifier according to the mass part ratio of 1: 1. Through reasonable raw material selection and proportioning, the AKD emulsion with excellent stability, sizing performance and water resistance is prepared, and a better solution is provided for production of paper products.

The invention provides a styrene-acrylonitrile-maleic anhydride copolymer sizing agent as well as a preparation method and application thereof. The sizing agent comprises a styrene-acrylonitrile-maleic anhydride copolymer, a water-based emulsifier, epoxy resin, an auxiliary agent and water, wherein the auxiliary agent comprises a plasticizer and a surfactant. The styrene-acrylonitrile-maleic anhydride copolymer has the following structure: # imgabs0 # m is 1 to 50; n is 1 to 50; o is from 1 to 50; r1 is # imgabs1, R2 is # imgabs2, R3 is # imgabs3, R4, R5 and R6 are independently-H,-CH3,-F,-Cl and-Br or # imgabs4, and R7 is H, Na, K, NH4 or NH (CH3) 3; and R8 is-H,-CH3 or-Cl. The sizing amount of the sizing agent is moderate (0.6-1.5%), the saturated water absorption rate is low (less than 0.1%), the interlaminar shear strength is moderate (70-100 MPa), the particle size is controllable (200-500 nm), and the stability is good (more than 6 months).

The invention relates to the technical field of textile equipment, in particular to a size tank for a sizing machine, which comprises an inner size tank, a size dipping roller, an outer tank, a squeezing roller assembly, a sizing roller and a power assembly, the squeezing roller assembly and the sizing roller are both mounted in the inner size tank, and the squeezing roller assembly is positioned above the sizing roller. Pressure borne by the squeezing roller shaft is transmitted to the inner wall of the squeezing roller through the supporting rings, due to the fact that the inner wall of the squeezing roller is arch-shaped, and the characteristic that force is evenly dispersed to the bottom when the arch-shaped top is stressed is utilized, the pressure applied by the supporting rings is evenly dispersed to the outer wall of the squeezing roller, so that the pressure of a rubber sleeve on the outer wall of the squeezing roller on yarn becomes even, and the yarn quality is improved. Therefore, the sizing quality is improved. Meanwhile, when the squeezing roller shaft is pressed by the connecting plate, the squeezing roller shaft is supported by the supporting rods, so that the deformation degree of the squeezing roller shaft is reduced, the stress uniformity of the squeezing roller is further improved, and the yarn sizing effect is improved.

The application discloses a paper-based and pulp molded product strong water-based structure resin composition for constructing a fiber matrix, a kit and a preparation and application method thereof, and belongs to the technical field of papermaking wet end chemistry and pulp molding materials. In response to the global trend of replacing plastic with paper and fluorine-free control of food contact materials, the application aims at the pain point of failure of traditional chemicals in a high recycling pulp proportion and a closed water circulation high conductivity system, and constructs an acrylic polycarboxylic acid polymer and inorganic-organic dual charge buffer synergistic system. The scheme realizes the multiplication effect of physical strength such as breaking and ring pressure and the water resistance and oil resistance barrier performance by a unique crosslinking mechanism at a very low dosage, which is better than conventional enhancement technology on the market. The composition is a full water-based system and does not contain perfluorinated compounds, which ensures complete pulp recycling while giving the product excellent wet stiffness and film-forming density, and provides a green solution with high efficiency, low cost advantage and compliance for the papermaking and pulp molding industry.

The invention discloses a starch substitute, and belongs to the technical field of paper-making industry, and the starch substitute is prepared from the following raw materials in parts by weight: 20-70 parts of yellow ginger starch, 10-30 parts of coconut shell fiber powder, 1-3 parts of a thickening agent and 1-3 parts of a reinforcing agent. The cardboard paper surface sizing starch substitute is all from byproducts or wastes of natural plant processing, has excellent environmental protection property and low cost, and can greatly replace the original surface sizing starch. And on the basis of ensuring the surface sizing effect and the finished paper quality, the use amount of the surface sizing collagen starch of a paperboard factory can be greatly reduced, and the production cost is reduced. And the sizing effect is good, the ring crush index, the water resistance and other quality indexes of the box board are all improved, and the problem that the box board gets damp in summer can be effectively solved.

The invention relates to the field of spinning, in particular to starch slurry for sizing glass fiber yarns for weaving and a preparation method of the starch slurry. The method comprises the following steps: refining starch; acidolysis of starch; the preparation method comprises the following steps: mixing starch milk, a silane coupling agent and a catalyst a for reaction under inert gas and water bath heating conditions to obtain modified starch A; the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane, and the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane; mixing and reacting starch milk, a functional monomer and a catalyst b under inert gas and water bath heating conditions to obtain modified starch B; the functional monomer comprises 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, butyl acrylate, sodium allysulfonate, acrylic acid or methyl acrylate; gelatinizing the starch milk, adding a textile auxiliary agent, and uniformly mixing. The starch size is applied to sizing of glass fiber yarns for weaving, the sizing rate is high, and a product has high bundling property, high wear resistance, high elasticity, excellent mechanical property and excellent flexibility.

The utility model discloses a hot grinding sizing device for artificial board production, which comprises a rotating rod, a supporting bin, an adjusting bin and a bin body, the adjusting bin is arranged at the top of the bin body, the supporting bin is arranged at the side part of the adjusting bin, a first driving motor is arranged in the supporting bin, and a second driving motor is arranged in the adjusting bin. A driving wheel and a driven wheel are connected between the two ends of the inner wall of the adjusting bin through bearings, the output end of the first driving motor is fixedly connected with the driving end of the driving wheel, a belt is arranged on the outer wall of the driving wheel and the outer wall of the driven wheel, and the driving wheel and the driven wheel are fixedly connected through the belt. A feeding bin is arranged at one end of the top of the bin body, an electric push rod is arranged in the feeding bin, one end of the electric push rod is fixedly connected with a driving wheel and a driven wheel, and a fiber feeding pipe is connected to the upper end of the side portion of the feeding bin. The glue applying device can avoid material blocking and is good in glue applying effect.

The invention relates to the technical field of papermaking additives, and discloses a preparation method of a tannic acid-based papermaking additive, which comprises the following steps: 1) preparation of a tannic acid solution: dissolving tannic acid in deionized water, and stirring to form a uniform solution; 2) preparing a cationic starch solution: dissolving cationic starch in deionized water, heating and stirring until the solution is uniform; and 3) preparing a tannic acid-cationic starch emulsion: slowly dropwise adding the cationic starch solution into the tannic acid solution, heating to a set temperature, keeping the reaction, and cooling to obtain the tannic acid-cationic starch emulsion. The tensile strength and anti-cracking strength of paper are remarkably improved through modified tannic acid, the fiber dispersity and the sizing liquid retention rate are improved, the problem that a traditional auxiliary is insufficient in performance is solved, meanwhile, an environment-friendly modification technology is adopted, use of toxic chemical reagents is reduced, the long-term stability and environment friendliness of the auxiliary are improved, and the requirement for sustainable development is met.

The invention discloses a preparation method and application of graded lignin high-stability anion dispersed rosin size, and the preparation method comprises the following steps: step 1, weighing a lignin raw material, mixing with an ethanol solution, and continuously stirring at room temperature; performing vacuum filtration to obtain a lignin solution dissolved in ethanol; carrying out rotary evaporation on the solution to recover ethanol, drying the residual solid, and grinding to obtain the low-molecular-weight lignin L95; and 2, fully mixing low-molecular-weight lignin L95 and rosin in absolute ethyl alcohol, magnetically stirring the solution, carrying out rotary evaporation to recover absolute ethyl alcohol, and drying residues in a drying oven to obtain the graded lignin high-stability anion dispersed rosin size. The lignin anion dispersed rosin size with high stability and high sizing performance is prepared, rosin in the sizing agent ensures good hydrophobicity of the sizing agent, the preparation process is efficient, reaction conditions are mild and controllable, and the lignin anion dispersed rosin size has wide application prospects.

The utility model belongs to the technical field of cloth sizing machines, and particularly relates to a temperature-adjustable cloth sizing machine which comprises a sizing agent box, a winding roller and an unwinding roller, the winding roller and the unwinding roller are installed on the left side and the right side of the sizing agent box respectively, an air cylinder is installed at the bottom of the sizing agent box, and a sizing roller is rotationally connected to the inner side of a roller frame. Inclined guide plates are fixedly connected between the left side and the right side of the upper end face of the mounting plate and the roller frame, pumps are arranged below the two guide plates, a plurality of nozzles are densely arranged and spread after being sprayed to the outer wall of the sizing roller, the outer wall of the sizing roller is evenly coated with sizing agent, and the sizing agent is evenly sprayed on the outer wall of the sizing roller along with conduction of cloth on the outer wall of the sizing roller. The sizing is rapid and convenient, the coating is uniform, the plurality of heating rods are started to heat the sizing agent in the sizing agent box, and when the temperature reaches a preset range, the heating rods stop working, so that the sizing agent is kept at a constant temperature, the optimal effect of the sizing agent is kept, and the sizing effect is improved.

This invention discloses a method for preparing a highly reactive AKD emulsion, as well as the high-reactivity AKD emulsion and its applications. The method includes the following steps: slowly adding the oil phase to the aqueous phase and pre-emulsifying for 10-20 minutes under high-speed shear emulsification to obtain a coarse emulsion; pumping the coarse emulsion into a dual-grinding-disc system composed of a first colloid mill and a second colloid mill connected in series, where the emulsion is successively ground and dispersed by the two grinding discs to obtain a refined emulsion; sending the refined emulsion into a circulating stabilization tank, continuously stirring at 40-50°C, and then returning the emulsion to the inlet of the dual-grinding-disc system via a circulating pump for cyclic grinding and stabilization treatment; cooling and filtering to obtain a highly reactive AKD emulsion. This invention utilizes differentially spaced dual-grinding-disc series grinding combined with low-temperature cyclic stabilization. Through stepwise refinement and cyclic stabilization treatment, it significantly reduces the emulsion particle size, improves particle size uniformity, enhances the interfacial reactivity of AKD particles, and greatly inhibits hydrolysis, thereby achieving efficient sizing at low dosages.

This invention discloses a method for preparing and applying a bio-based plastic starch slurry with medium-temperature water solubility, belonging to the field of textile manufacturing technology. The invention uses native starch as raw material, utilizes amylase to hydrolyze starch to prepare branched-limit dextrin, and uses this as a plasticizer for the starch slurry. Then, amphoteric starch is prepared by grafting in a two-step process at low temperature. Finally, an ethanol-alkali method is used to treat the starch to obtain a medium-temperature water-soluble amphoteric starch slurry. The preparation, boiling, and sizing processes of this slurry all occur at temperatures not exceeding 70℃, achieving medium-low temperatures throughout the entire process. This significantly reduces energy consumption while ensuring the sizing yarn performance meets weaving requirements. Furthermore, the prepared bio-based plastic starch slurry with medium-temperature water solubility exhibits excellent sizing performance, and the sized glass fiber warp yarns possess high bundle strength, high abrasion resistance, excellent mechanical properties, and excellent softness.

The invention discloses a seamless gluing machine belt sizing device, and relates to the technical field of seamless gluing machine belt sizing. The device comprises a bottom plate, a supporting frame is arranged at the top of the bottom plate, a storage tank is arranged at the top of the supporting frame, a centrifugal stirring mechanism is arranged on the storage tank, and a plurality of sets of fixing mechanisms are arranged on the outer side wall of the conveying device. The shearing force generated by the centrifugal stirring mechanism can effectively break bubbles, so that the bubbles are more uniformly distributed in liquid, the bubbles quickly escape, and the bubble removing effect is improved, so that liquid drops sprayed by the atomizing spray head are uniform in size, the thickness of slurry on the surface of a bonding machine belt is uniform, and the sizing effect is improved; and the up-and-down moving stirring can break the aggregation state of the bubbles, so that the escape of the bubbles is accelerated, and the bubble removal effect is further improved.

The utility model relates to food sizing technology field, proposes a kind of food sizing machine, comprising: bottom plate;Supporting plate and oppositely arranged moving plate are arranged in the bottom plate side;Sizing assembly is arranged between the supporting plate and moving plate, and sizing assembly includes stirring assembly and rotating assembly;Rotating assembly includes stirring barrel and multiple partitions set in stirring barrel interior;Stirring assembly includes inner drum set in stirring barrel interior and stirring rod arranged in inner drum interior, the outer wall of the inner drum is provided with multiple groups of cards, for fixed inner drum. Through the setting of stirring barrel and partition, the rotation of stirring barrel can be driven by the starting of second motor, the partition in its interior can increase the movement distance of meat, and short-distance, high-frequency beating can be carried out, so that the sizing effect is higher, and through detachable inner drum and detachable stirring rod, for different meats, etc. two different ways of rotation, stirring can be selected to size, so that the versatility of the device is higher.

The application provides a vamp gluing device and method, and belongs to the field of shoemaking. The device comprises a main glue gun, an auxiliary glue gun, a third glue gun, a blowing assembly and a baffle assembly. The auxiliary glue gun is arranged at an adjustable inclination angle. The main glue gun is horizontally arranged and located below the auxiliary glue gun. The baffle assembly is arranged in front of the main glue gun and can be retracted backward. The third glue gun is horizontally arranged and located below the baffle assembly. The blowing assembly is arranged below the third glue gun. The application can avoid glue overflow or convex points at the toe of the shoe and effectively improve the gluing effect.

The invention discloses a preparation method and application of bio-based plastic starch slurry with medium-temperature water solubility, and belongs to the technical field of textile manufacturing. According to the invention, native starch is used as a raw material, starch is hydrolyzed by amylase to prepare branched limit dextrin, the branched limit dextrin is used as a starch slurry plasticizer, then amphoteric starch is prepared by two-step grafting in a low-temperature environment, and finally, the medium-temperature water-soluble amphoteric starch slurry is obtained by ethanol-alkali treatment. The temperature of the preparation, boiling, mixing and sizing process of the size does not exceed 70 DEG C, medium and low temperature is realized in the whole process, the energy consumption is greatly reduced, the sizing performance meets the weaving requirement, and the prepared bio-based plastic starch size with the medium-temperature water solubility has excellent sizing performance, and is suitable for large-scale production. And the sized glass fiber warp yarns have high bundling property, high wear resistance, excellent mechanical property and excellent flexibility.

The present application relates to the technical field of textile equipment, and specifically to a sizing machine with an adjustment function, comprising: a box body, the box body is used to hold slurry, and a feed roller and a discharge roller are respectively provided at both ends of the box body; an adjusting roller, the two ends of the adjusting roller are connected with movable blocks, the adjusting roller and the movable block are rotatably connected, and the movable block is slidably installed in the box body; a liquid storage tank, the liquid storage tank is used to store slurry, the liquid storage tank is connected to the box body through a circulation pipeline, and a switch device is provided on the circulation pipeline; a driving member, the driving member is installed on the box body, and is used to drive the guide block and the movable block to move in the box body, and the driving member is also used to drive the opening and closing of the switch device to adjust the liquid level of the slurry in the box body. The present application has the effect of flexibly adjusting the sizing time of the cloth.

The invention provides an amphoteric metaanion chlorine-free rosin size raw material composition which comprises the following raw materials in parts by weight: 100-200 parts of rosin, 5-20 parts of a modifier, 5-8 parts of an anionic starch emulsifier, 5-8 parts of an amphoteric emulsifier and / or a proper amount of a functional aid, and the anionic starch emulsifier is an esterification cross-linked product of 1, 2, 3, 4-butanetetracarboxylic acid and starch. The preparation method of the amphoteric metaanion chlorine-free rosin size from the raw material composition comprises the following steps: heating and melting rosin, adding a modifier, reacting to obtain modified rosin, heating an anionic starch emulsifier and an amphoteric emulsifier to 60-90 DEG C, sequentially dropwise adding the materials into the modified rosin in a molten state, pre-emulsifying, and cooling to room temperature to obtain the amphoteric metaanion chlorine-free rosin size. And adding hot water into the pre-emulsified rosin liquid for phase inversion, cooling, and adding a functional auxiliary agent. The main raw materials of the amphoteric partial anion chlorine-free rosin size are natural renewable substances, the particle size distribution is narrow, the stability is good, the foam is less, fiber flocculation is not caused, and when the amphoteric partial anion chlorine-free rosin size is applied to papermaking sizing, acidic to neutral sizing can be achieved.